/Engine/Plugins/Runtime/Metasound/Source/MetasoundGraphCore/Public/MetasoundNodeInterface.h
Key type for anFOutputDataSourceorFInputDataDestination.
typedef [TTuple](API\Runtime\Core\Misc\TTuple)< const [INode](API\Plugins\MetasoundGraphCore\INode) *, [FVertexName](API\Plugins\MetasoundGraphCore\FVertexName) > FNodeDataVertexKey